package com.vivz.baby.rest.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Component;

import com.vivz.baby.util.SysoutUtil;

@Component
public class SimpleCORSFilter implements Filter {

    public SimpleCORSFilter() {
        SysoutUtil.sysout("********* SimpleCORSFilter instantiated *********");
    }

    public void doFilter(final ServletRequest req, final ServletResponse res, final FilterChain chain) throws IOException, ServletException {
        System.out.println("********* SimpleCORSFilter doFilter *********");
        final HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "PUT, POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600"); // 3600
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Origin");
        chain.doFilter(req, res);
    }

    public void init(final FilterConfig filterConfig) {
        SysoutUtil.sysout("********* SimpleCORSFilter init() *********");
    }

    public void destroy() {
        SysoutUtil.sysout("********* SimpleCORSFilter destroy() *********");
    }

}